/Engine/Source/Runtime/Engine/Public/PrecomputedVolumetricLightmap.h
class FParameters
TShaderResource...
AmbientVector
TShaderResource...
DirectionalLightShadowing
TShaderResource...
OutAmbientVector
TShaderResource...
OutDirectionalLightShadowing
TShaderResource...
OutSkyBentNormal
TShaderResource...
SkyBentNormal
TShaderParamete...
StartPosInNewVolume
TShaderParamete...
StartPosInOldVolume